Why this matters now
The IWT is the model transboundary water treaty and a live foreign-policy lever. Aspirants must know its river allocation, its dispute-resolution ladder, the running Kishanganga-Ratle disputes, and the 2025 decision to hold it in abeyance — which links water, terrorism and treaty law in one current-affairs knot.
How the treaty divides the rivers
| Rivers | Allocated to | Note |
|---|---|---|
| Eastern — Ravi, Beas, Sutlej | India (unrestricted use) | ~20% of the system’s waters |
| Western — Indus, Jhelum, Chenab | Pakistan | ~80% of the waters; India may use them for non-consumptive needs — navigation, limited irrigation, and run-of-the-river hydropower |
India is thus entitled to the full flow of the eastern rivers and to specified limited use of the western rivers. The Permanent Indus Commission (one commissioner each) meets regularly to implement the treaty and resolve routine questions.
The three-step dispute mechanism
The treaty provides a graded mechanism: (1) questions are settled by the Permanent Indus Commission; (2) differences go to a Neutral Expert appointed by the World Bank; (3) disputes go to a Court of Arbitration. A long-running friction is that for the Kishanganga and Ratle projects, the two countries triggered different tracks simultaneously — India a Neutral Expert, Pakistan a Court of Arbitration — raising the risk of contradictory rulings.
Kishanganga and Ratle
Kishanganga (on a Jhelum tributary) and Ratle (on the Chenab) are run-of-the-river hydropower projects India has built or is building on western rivers. Pakistan objects to their pondage and spillway design, fearing reduced or manipulated flows. The 2013 Court of Arbitration largely upheld India’s right to build Kishanganga while setting minimum environmental flows. India has formally sought to modify the treaty, arguing the dispute machinery has been abused.
Holding the treaty in abeyance (2025)
After the April 2025 Pahalgam terror attack, India announced the treaty would be held in abeyance until Pakistan “credibly and irrevocably” ends cross-border terrorism. The treaty has no exit clause, so “abeyance” is a deliberate, novel posture: India can pause data-sharing and commission meetings and accelerate its own western-river projects. The move ties water security to counter-terrorism and is a leading current-affairs case study on treaty obligations under stress.
UPSC angle
Lock in the split (eastern = India; western = Pakistan, India gets non-consumptive use) and the three-step dispute ladder (Commission → Neutral Expert → Court of Arbitration). For Mains, discuss the 2025 abeyance as a question of treaty law, leverage and downstream-state ethics.
Frequently asked questions
What is the Indus Waters Treaty 1960?
A World Bank-brokered treaty between India and Pakistan that allocates the eastern rivers (Ravi, Beas, Sutlej) to India and the western rivers (Indus, Jhelum, Chenab) to Pakistan, while letting India make limited non-consumptive use of the western rivers, including run-of-the-river hydropower.
How are disputes under the IWT resolved?
Through a three-step ladder: routine questions by the Permanent Indus Commission, differences by a World Bank-appointed Neutral Expert, and disputes by a Court of Arbitration.
What are the Kishanganga and Ratle disputes?
They are Indian run-of-the-river hydropower projects on western rivers (Jhelum tributary and the Chenab). Pakistan objects to their design, fearing flow manipulation; India maintains the projects are treaty-compliant.
Why did India put the treaty in abeyance in 2025?
After the April 2025 Pahalgam terror attack, India announced it would hold the treaty in abeyance until Pakistan ends cross-border terrorism — a novel posture since the treaty has no exit clause.